int(-pi//2)^(pi//2)(cos^(2)2x)/(1+25^(x)...

`int_(-pi//2)^(pi//2)(cos^(2)2x)/(1+25^(x))dx=`....

A

`(pi)/(4)`

B

`-(pi)/(2)`

C

`(pi)/(2)`

D

`-(pi)/(4)`

Verified by Experts

The correct Answer is:

A

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